Composición isotópica (δ13C, δ18O y δD) de perfiles mixtos de calcretas-silcretas: significado paleoambiental (Mioceno, área de Torrijos, Cuenca de Madrid)

In this paper the isotopic stable isotopes of three calcrete-silcrete profiles are studied. The profiles correspond to the top of the Lower Miocene Unit of the SE Madrid basin and developed on fine-grained detrital deposits formed in distal alluvial fan systems. δ13CPDB and δ18OPDB analyses were car...

Descripción completa

Detalles Bibliográficos
Autores: Bustillo Revuelta, María Ángeles, Alonso Zarza, Ana María, Plet, Chloé
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:español
OAI Identifier:oai:ariasmontano.uhu.es:10272/10651
Acceso en línea:http://hdl.handle.net/10272/10651
Access Level:acceso abierto
Palabra clave:Stable isotopes
Calcretes
Silicification
Rizoliths
Groundwater
Isótopos estables
Calcretas
Silicificación
Rizolitos
Freático
id ES_fe020144fd6beef91c2f5d2332f1f7eb
oai_identifier_str oai:ariasmontano.uhu.es:10272/10651
network_acronym_str ES
network_name_str España
repository_id_str
spelling Composición isotópica (δ13C, δ18O y δD) de perfiles mixtos de calcretas-silcretas: significado paleoambiental (Mioceno, área de Torrijos, Cuenca de Madrid)Isotopic composition (δ13C, δ18O y δD) of calcrete-silcrete intergrades: paleoenvironmental significance (Mioceno, Torrijos area, Madrid Basin)Bustillo Revuelta, María ÁngelesAlonso Zarza, Ana MaríaPlet, ChloéStable isotopesCalcretesSilicificationRizolithsGroundwaterIsótopos establesCalcretasSilicificaciónRizolitosFreáticoIn this paper the isotopic stable isotopes of three calcrete-silcrete profiles are studied. The profiles correspond to the top of the Lower Miocene Unit of the SE Madrid basin and developed on fine-grained detrital deposits formed in distal alluvial fan systems. δ13CPDB and δ18OPDB analyses were carried on the carbonate samples (calcite), whereas δ18OSMOW and δDSMOW, were analyzed in the silica minerals (quartz, opal and moganite). The results indicate that the calcrete-silcrete profiles formed by the influence of meteoric percolating waters. The values obtained in the calcretes indicate meteoric waters, slightly modified, and a great influence of vegetation, especially C3 plants, in the precipitation of soil carbonate. The water responsible for silcrete formation was very similar in the three studied profiles. δ18O and δ D ratios do not fit the global meteoric water line, probably due to evaporation. Most of silicification processes were from groundwaters of δ18OSMOW values between -6 and -8‰. However, the very early silicification processes, localized in roots, were produced in microenvironments with slightly more evaporated waters (between -4 and -6 ‰) due probably to evapotranspirationSociedad Geológica de España20142014-01-0120142014-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10272/10651reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Españolspaopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/106512026-06-02T14:58:11Z
dc.title.none.fl_str_mv Composición isotópica (δ13C, δ18O y δD) de perfiles mixtos de calcretas-silcretas: significado paleoambiental (Mioceno, área de Torrijos, Cuenca de Madrid)
Isotopic composition (δ13C, δ18O y δD) of calcrete-silcrete intergrades: paleoenvironmental significance (Mioceno, Torrijos area, Madrid Basin)
title Composición isotópica (δ13C, δ18O y δD) de perfiles mixtos de calcretas-silcretas: significado paleoambiental (Mioceno, área de Torrijos, Cuenca de Madrid)
spellingShingle Composición isotópica (δ13C, δ18O y δD) de perfiles mixtos de calcretas-silcretas: significado paleoambiental (Mioceno, área de Torrijos, Cuenca de Madrid)
Bustillo Revuelta, María Ángeles
Stable isotopes
Calcretes
Silicification
Rizoliths
Groundwater
Isótopos estables
Calcretas
Silicificación
Rizolitos
Freático
title_short Composición isotópica (δ13C, δ18O y δD) de perfiles mixtos de calcretas-silcretas: significado paleoambiental (Mioceno, área de Torrijos, Cuenca de Madrid)
title_full Composición isotópica (δ13C, δ18O y δD) de perfiles mixtos de calcretas-silcretas: significado paleoambiental (Mioceno, área de Torrijos, Cuenca de Madrid)
title_fullStr Composición isotópica (δ13C, δ18O y δD) de perfiles mixtos de calcretas-silcretas: significado paleoambiental (Mioceno, área de Torrijos, Cuenca de Madrid)
title_full_unstemmed Composición isotópica (δ13C, δ18O y δD) de perfiles mixtos de calcretas-silcretas: significado paleoambiental (Mioceno, área de Torrijos, Cuenca de Madrid)
title_sort Composición isotópica (δ13C, δ18O y δD) de perfiles mixtos de calcretas-silcretas: significado paleoambiental (Mioceno, área de Torrijos, Cuenca de Madrid)
dc.creator.none.fl_str_mv Bustillo Revuelta, María Ángeles
Alonso Zarza, Ana María
Plet, Chloé
author Bustillo Revuelta, María Ángeles
author_facet Bustillo Revuelta, María Ángeles
Alonso Zarza, Ana María
Plet, Chloé
author_role author
author2 Alonso Zarza, Ana María
Plet, Chloé
author2_role author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Stable isotopes
Calcretes
Silicification
Rizoliths
Groundwater
Isótopos estables
Calcretas
Silicificación
Rizolitos
Freático
topic Stable isotopes
Calcretes
Silicification
Rizoliths
Groundwater
Isótopos estables
Calcretas
Silicificación
Rizolitos
Freático
description In this paper the isotopic stable isotopes of three calcrete-silcrete profiles are studied. The profiles correspond to the top of the Lower Miocene Unit of the SE Madrid basin and developed on fine-grained detrital deposits formed in distal alluvial fan systems. δ13CPDB and δ18OPDB analyses were carried on the carbonate samples (calcite), whereas δ18OSMOW and δDSMOW, were analyzed in the silica minerals (quartz, opal and moganite). The results indicate that the calcrete-silcrete profiles formed by the influence of meteoric percolating waters. The values obtained in the calcretes indicate meteoric waters, slightly modified, and a great influence of vegetation, especially C3 plants, in the precipitation of soil carbonate. The water responsible for silcrete formation was very similar in the three studied profiles. δ18O and δ D ratios do not fit the global meteoric water line, probably due to evaporation. Most of silicification processes were from groundwaters of δ18OSMOW values between -6 and -8‰. However, the very early silicification processes, localized in roots, were produced in microenvironments with slightly more evaporated waters (between -4 and -6 ‰) due probably to evapotranspiration
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-01-01
2014
2014-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10272/10651
url http://hdl.handle.net/10272/10651
dc.language.none.fl_str_mv Español
spa
language_invalid_str_mv Español
language spa
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Sociedad Geológica de España
publisher.none.fl_str_mv Sociedad Geológica de España
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869425645599064064
score 15.81155

Similares en LA Referencia